Core drill



FIG. 1 is a perspective view of the core drill;

FIG. 2 is a front view thereof; (the rear view thereof is a mirror image of this)

FIG. 3 is a left side view thereof; (the right side view thereof is a mirror image of this)

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a cross-sectional view of the core drill of FIG. 1 taken along section line 6—6. 

The ornamental design for a core drill, as shown and described. 